我使用了两种方法来使用SD卡启动内核，但都会在最后显示waiting for SD card，然后重启启动，求大牛帮忙啊。下面是我的步骤，大家看看有啥问题。
第一种：按照Readme-uboot.txt中的步骤。
u-boot的烧写：
使用的是FriendlyARM产品提供的工具中的sd_fusing.sh来烧写u-boot。
u-boot源码是uboot_tiny4412-20130729.tgz，里面有u-boot使用说明：Readme-uboot.txt，并有uboot烧写工具sd_fusing.sh。按照说明步骤即可。
内核和文件系统的烧写：zImage、ramdisk-u.img、rootfs_qtopia_qt4.img的烧写最初是按照Readme-uboot.txt中的烧写步骤，使用fastboot进行分区，烧写的，这里的镜像文件使用的全都是Tiny4412产品资料自带的文件。但是启动时，显示如下错误：
[ 0.210000] TCP established hash table entries: 131072 (order: 8, 1048576 bytes)
[ 0.210000] TCP bind hash table entries: 65536 (order: 7, 786432 bytes)
[ 0.215000] TCP: Hash tables configured (established 131072 bind 65536)
[ 0.215000] TCP: reno registered
[ 0.215000] UDP hash table entries: 512 (order: 2, 16384 bytes)
[ 0.215000] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes)
[ 0.215000] NET: Registered protocol family 1
[ 0.215000] RPC: Registered named UNIX socket transport module.
[ 0.215000] RPC: Registered udp transport module.
[ 0.215000] RPC: Registered tcp transport module.
[ 0.215000] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 0.215000] Trying to unpack rootfs image as initramfs...
[ 0.240000] Freeing initrd memory: 680K
[ 0.240000] NetWinder Floating Point Emulator V0.97 (double precision)
[ 0.240000] Attached IOMMU controller to exynos4-fimc.0 device.
[ 0.240000] Attached IOMMU controller to exynos4-fimc.1 device.
[ 0.245000] Attached IOMMU controller to exynos4-fimc.2 device.
[ 0.245000] Attached IOMMU controller to exynos4-fimc.3 device.
[ 0.245000] Attached IOMMU controller to s5p-mfc-l device.
[ 0.245000] Attached IOMMU controller to s5p-mfc-r device.
[ 0.245000] Attached IOMMU controller to s5p-mixer device.
[ 0.245000] Attached IOMMU controller to s5p-fimg2d device.
[ 0.245000] Attached IOMMU controller to s5p-jpeg.0 device.
[ 0.245000] platform exynos-fimc-lite.0: No SYSMMU found
[ 0.245000] Attached IOMMU controller to exynos-fimc-lite.0 device.
[ 0.245000] platform exynos-fimc-lite.1: No SYSMMU found
[ 0.245000] Attached IOMMU controller to exynos-fimc-lite.1 device.
[ 0.245000] s3c-adc samsung-adc-v4: attached adc driver
[ 0.245000] Failed to declare coherent memory for MFC device (0 bytes at 0x43000000)
[ 0.245000] highmem bounce pool size: 64 pages
[ 0.250000] NFS: Registering the id_resolver key type
[ 0.250000] Key type id_resolver registered
[ 0.250000] NTFS driver 2.1.30 [Flags: R/W].
[ 0.250000] fuse init (API version 7.19)
[ 0.250000] msgmni has been set to 1415
[ 0.250000] io scheduler noop registered
[ 0.250000] io scheduler deadline registered
[ 0.250000] io scheduler cfq registered (default)
[ 0.285000] s3c-fb exynos4-fb.0: window 0: fb
[ 0.320000] s3c-fb exynos4-fb.0: window 1: fb
[ 0.360000] s3c-fb exynos4-fb.0: window 2: fb
[ 0.395000] s3c-fb exynos4-fb.0: window 3: fb
[ 0.440000] s3c-fb exynos4-fb.0: window 4: fb
[ 0.440000] Start display and show logo
[ 0.440000] dma-pl330 dma-pl330.0: Loaded driver for PL330 DMAC-267056
[ 0.440000] dma-pl330 dma-pl330.0: DBUFF-32x4bytes Num_Chans-8 Num_Peri-32 Num_Events-32
[ 0.440000] dma-pl330 dma-pl330.1: Loaded driver for PL330 DMAC-267056
[ 0.440000] dma-pl330 dma-pl330.1: DBUFF-32x4bytes Num_Chans-8 Num_Peri-32 Num_Events-32
[ 0.445000] Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
[ 0.445000] exynos4210-uart.0: ttySAC0 at MMIO 0x13800000 (irq = 84) is a S3C6400/10
[ 1.395000] console [ttySAC0] enabled
[ 1.400000] exynos4210-uart.1: ttySAC1 at MMIO 0x13810000 (irq = 85) is a S3C6400/10
[ 1.410000] exynos4210-uart.2: ttySAC2 at MMIO 0x13820000 (irq = 86) is a S3C6400/10
[ 1.415000] exynos4210-uart.3: ttySAC3 at MMIO 0x13830000 (irq = 87) is a S3C6400/10
[ 1.425000] leds initialized
[ 1.425000] buttons initialized
[ 1.430000] pwm initialized
[ 1.430000] backlight initialized
[ 1.435000] tiny4412-adc initialized
[ 1.440000] Mali: init_mali_clock mali_clock c0900024 at 440 MHz
[ 1.445000] Mali: Mali device driver loaded
[ 1.450000] brd: module loaded
[ 1.455000] loop: module loaded
[ 1.455000] tun: Universal TUN/TAP device driver, 1.6
[ 1.460000] tun: (C) 1999-2004 Max Krasnyansky <
maxk@qualcomm.com>
[ 1.465000] PPP generic driver version 2.4.2
[ 1.470000] PPP BSD Compression module registered
[ 1.475000] PPP Deflate Compression module registered
[ 1.480000] PPP MPPE Compression module registered
[ 1.485000] NET: Registered protocol family 24
[ 1.490000] pegasus: v0.6.14 (2006/09/27), Pegasus/Pegasus II USB Ethernet driver
[ 1.495000] usbcore: registered new interface driver pegasus
[ 1.500000] usbcore: registered new interface driver asix
[ 1.510000] usbcore: registered new interface driver cdc_ether
[ 1.515000] usbcore: registered new interface driver dm9601
[ 1.520000] usbcore: registered new interface driver dm9620
[ 1.525000] usbcore: registered new interface driver net1080
[ 1.530000] usbcore: registered new interface driver cdc_subset
[ 1.535000] usbcore: registered new interface driver zaurus
[ 1.540000] usbcore: registered new interface driver cdc_ncm
[ 1.545000] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 1.555000] s5p-ehci s5p-ehci: S5P EHCI Host Controller
[ 1.560000] s5p-ehci s5p-ehci: new USB bus registered, assigned bus number 1
[ 1.565000] s5p-ehci s5p-ehci: irq 102, io mem 0x12580000
[ 1.580000] s5p-ehci s5p-ehci: USB 0.0 started, EHCI 1.00
[ 1.580000] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[ 1.585000] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 1.590000] usb usb1: Product: S5P EHCI Host Controller
[ 1.595000] usb usb1: Manufacturer: Linux 3.5.0-FriendlyARM ehci_hcd
[ 1.600000] usb usb1: SerialNumber: s5p-ehci
[ 1.605000] hub 1-0:1.0: USB hub found
[ 1.610000] hub 1-0:1.0: 3 ports detected
[ 1.615000] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[ 1.620000] exynos-ohci exynos-ohci: PHY already ON
[ 1.625000] exynos-ohci exynos-ohci: EXYNOS OHCI Host Controller
[ 1.630000] exynos-ohci exynos-ohci: new USB bus registered, assigned bus number 2
[ 1.640000] exynos-ohci exynos-ohci: irq 102, io mem 0x12590000
[ 1.700000] usb usb2: New USB device found, idVendor=1d6b, idProduct=0001
[ 1.700000] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 1.700000] usb usb2: Product: EXYNOS OHCI Host Controller
[ 1.700000] usb usb2: Manufacturer: Linux 3.5.0-FriendlyARM ohci_hcd
[ 1.705000] usb usb2: SerialNumber: exynos-ohci
[ 1.710000] hub 2-0:1.0: USB hub found
[ 1.715000] hub 2-0:1.0: 3 ports detected
[ 1.715000] Initializing USB Mass Storage driver...
[ 1.720000] usbcore: registered new interface driver usb-storage
[ 1.730000] USB Mass Storage support registered.
[ 1.735000] usbcore: registered new interface driver usbserial
[ 1.740000] usbcore: registered new interface driver usbserial_generic
[ 1.745000] USB Serial support registered for generic
[ 1.750000] usbserial: USB Serial Driver core
[ 1.755000] usbcore: registered new interface driver aircable
[ 1.760000] USB Serial support registered for aircable
[ 1.765000] usbcore: registered new interface driver ark3116
[ 1.770000] USB Serial support registered for ark3116
[ 1.775000] usbcore: registered new interface driver belkin_sa
[ 1.780000] USB Serial support registered for Belkin / Peracom / GoHubs USB Serial Adapter
[ 1.790000] usbcore: registered new interface driver ch341
[ 1.795000] USB Serial support registered for ch341-uart
[ 1.800000] usbcore: registered new interface driver cp210x
[ 1.805000] USB Serial support registered for cp210x
[ 1.810000] usbcore: registered new interface driver cyberjack
[ 1.815000] USB Serial support registered for Reiner SCT Cyberjack USB card reader
[ 1.825000] usbcore: registered new interface driver cypress_m8
[ 1.830000] USB Serial support registered for DeLorme Earthmate USB
[ 1.835000] USB Serial support registered for HID->COM RS232 Adapter
[ 1.845000] USB Serial support registered for Nokia CA-42 V2 Adapter
[ 1.850000] usbcore: registered new interface driver digi_acceleport
[ 1.855000] USB Serial support registered for Digi 2 port USB adapter
[ 1.860000] USB Serial support registered for Digi 4 port USB adapter
[ 1.870000] usbcore: registered new interface driver io_edgeport
[ 1.875000] USB Serial support registered for Edgeport 2 port adapter
[ 1.880000] USB Serial support registered for Edgeport 4 port adapter
[ 1.890000] USB Serial support registered for Edgeport 8 port adapter
[ 1.895000] USB Serial support registered for EPiC device
[ 1.900000] usbcore: registered new interface driver io_ti
[ 1.905000] USB Serial support registered for Edgeport TI 1 port adapter
[ 1.910000] USB Serial support registered for Edgeport TI 2 port adapter
[ 1.920000] usbcore: registered new interface driver empeg
[ 1.925000] usb 1-1: new high-speed USB device number 2 using s5p-ehci
[ 1.930000] USB Serial support registered for empeg
[ 1.935000] usbcore: registered new interface driver f81232
[ 1.940000] USB Serial support registered for f81232
[ 1.945000] usbcore: registered new interface driver ftdi_sio
[ 1.950000] USB Serial support registered for FTDI USB Serial Device
[ 1.960000] ftdi_sio: v1.6.0:USB FTDI Serial Converters Driver
[ 1.965000] usbcore: registered new interface driver funsoft
[ 1.970000] USB Serial support registered for funsoft
[ 1.975000] usbcore: registered new interface driver garmin_gps
[ 1.980000] USB Serial support registered for Garmin GPS usb/tty
[ 1.985000] usbcore: registered new interface driver hp4x
[ 1.990000] USB Serial support registered for hp4X
[ 1.995000] usbcore: registered new interface driver ipaq
[ 2.000000] USB Serial support registered for PocketPC PDA
[ 2.005000] usbcore: registered new interface driver ipw
[ 2.010000] USB Serial support registered for IPWireless converter
[ 2.020000] usbcore: registered new interface driver ir_usb
[ 2.025000] USB Serial support registered for IR Dongle
[ 2.030000] ir_usb: v0.5:USB IR Dongle driver
[ 2.035000] usbcore: registered new interface driver iuu_phoenix
[ 2.040000] USB Serial support registered for iuu_phoenix
[ 2.045000] usbcore: registered new interface driver keyspan
[ 2.050000] USB Serial support registered for Keyspan - (without firmware)
[ 2.055000] USB Serial support registered for Keyspan 1 port adapter
[ 2.065000] USB Serial support registered for Keyspan 2 port adapter
[ 2.070000] USB Serial support registered for Keyspan 4 port adapter
[ 2.075000] usbcore: registered new interface driver keyspan_pda
[ 2.080000] USB Serial support registered for Keyspan PDA
[ 2.090000] usb 1-1: New USB device found, idVendor=1a40, idProduct=0101
[ 2.090000] USB Serial support registered for Keyspan PDA - (prerenumeration)
[ 2.090000] USB Serial support registered for Xircom / Entregra PGS - (prerenumeration)
[ 2.090000] usbcore: registered new interface driver kl5kusb105
[ 2.090000] USB Serial support registered for KL5KUSB105D / PalmConnect
[ 2.090000] usbcore: registered new interface driver kobil_sct
[ 2.090000] USB Serial support registered for KOBIL USB smart card terminal
[ 2.090000] usbcore: registered new interface driver mct_u232
[ 2.090000] USB Serial support registered for MCT U232
[ 2.090000] usbcore: registered new interface driver metro_usb
[ 2.090000] USB Serial support registered for Metrologic USB to Serial
[ 2.090000] usbcore: registered new interface driver mos7720
[ 2.090000] USB Serial support registered for Moschip 2 port adapter
[ 2.090000] usbcore: registered new interface driver mos7840
[ 2.090000] USB Serial support registered for Moschip 7840/7820 USB Serial Driver
[ 2.090000] usbcore: registered new interface driver moto_modem
[ 2.090000] USB Serial support registered for moto-modem
[ 2.090000] usbcore: registered new interface driver navman
[ 2.090000] USB Serial support registered for navman
[ 2.090000] usbcore: registered new interface driver omninet
[ 2.090000] USB Serial support registered for ZyXEL - omni.net lcd plus usb
[ 2.090000] usbcore: registered new interface driver opticon
[ 2.090000] USB Serial support registered for opticon
[ 2.090000] usbcore: registered new interface driver option
[ 2.090000] USB Serial support registered for GSM modem (1-port)
[ 2.090000] usbcore: registered new interface driver oti6858
[ 2.090000] USB Serial support registered for oti6858
[ 2.090000] usbcore: registered new interface driver pl2303
[ 2.090000] USB Serial support registered for pl2303
[ 2.090000] usbcore: registered new interface driver qcaux
[ 2.090000] USB Serial support registered for qcaux
[ 2.090000] usbcore: registered new interface driver qcserial
[ 2.090000] USB Serial support registered for Qualcomm USB modem
[ 2.090000] usbcore: registered new interface driver quatech2
[ 2.090000] USB Serial support registered for Quatech 2nd gen USB to Serial Driver
[ 2.090000] safe_serial: v0.1:USB Safe Encapsulated Serial
[ 2.090000] usbcore: registered new interface driver safe_serial
[ 2.090000] USB Serial support registered for safe_serial
[ 2.090000] usbcore: registered new interface driver siemens_mpi
[ 2.090000] USB Serial support registered for siemens_mpi
[ 2.090000] usbcore: registered new interface driver sierra
[ 2.090000] USB Serial support registered for Sierra USB modem
[ 2.090000] usbcore: registered new interface driver spcp8x5
[ 2.090000] USB Serial support registered for SPCP8x5
[ 2.090000] usbcore: registered new interface driver ssu100
[ 2.090000] USB Serial support registered for Quatech SSU-100 USB to Serial Driver
[ 2.090000] usbcore: registered new interface driver symbolserial
[ 2.090000] USB Serial support registered for symbol
[ 2.090000] usbcore: registered new interface driver ti_usb_3410_5052
[ 2.090000] USB Serial support registered for TI USB 3410 1 port adapter
[ 2.090000] USB Serial support registered for TI USB 5052 2 port adapter
[ 2.090000] ti_usb_3410_5052: v0.10:TI USB 3410/5052 Serial Driver
[ 2.090000] usbcore: registered new interface driver visor
[ 2.090000] USB Serial support registered for Handspring Visor / Palm OS
[ 2.090000] USB Serial support registered for Sony Clie 5.0
[ 2.090000] USB Serial support registered for Sony Clie 3.5
[ 2.090000] usbcore: registered new interface driver whiteheat
[ 2.090000] USB Serial support registered for Connect Tech - WhiteHEAT - (prerenumeration)
[ 2.090000] USB Serial support registered for Connect Tech - WhiteHEAT
[ 2.090000] usbcore: registered new interface driver vivopay_serial
[ 2.090000] USB Serial support registered for vivopay-serial
[ 2.090000] usbcore: registered new interface driver zio
[ 2.090000] USB Serial support registered for zio
[ 2.090000] mousedev: PS/2 mouse device common for all mice
[ 2.090000] usbcore: registered new interface driver xpad
[ 2.090000] input: ft5x0x_ts as /devices/virtual/input/input0
[ 2.100000] ft5x0x_ts 1-0038: Firmware version 0x12
[ 2.100000] ft5x0x_ts 1-0038: FocalTech ft5x0x TouchScreen initialized
[ 2.100000] touchscreen-1wire initialized
[ 2.100000] backlight-1wire initialized
[ 2.100000] setup_irq: ret = 0
[ 2.100000] PWM clock = 100000000
[ 2.100000] TCNT_FOR_SAMPLE_BIT = 650, TCFG1 = 00010004
[ 2.100000] input: fa_ts_input as /devices/virtual/input/input1
[ 2.100000] ts-if initialized
[ 2.100000] s3c-rtc s3c64xx-rtc: rtc disabled, re-enabling
[ 2.100000] s3c-rtc s3c64xx-rtc: rtc core: registered s3c as rtc0
[ 2.100000] i2c /dev entries driver
[ 2.100000] gspca_main: v2.14.0 registered
[ 2.100000] usbcore: registered new interface driver benq
[ 2.100000] usbcore: registered new interface driver conex
[ 2.100000] usbcore: registered new interface driver cpia1
[ 2.100000] usbcore: registered new interface driver etoms
[ 2.100000] usbcore: registered new interface driver finepix
[ 2.100000] usbcore: registered new interface driver jeilinj
[ 2.100000] usbcore: registered new interface driver jl2005bcd
[ 2.100000] usbcore: registered new interface driver kinect
[ 2.100000] usbcore: registered new interface driver konica
[ 2.100000] usbcore: registered new interface driver mars
[ 2.100000] usbcore: registered new interface driver mr97310a
[ 2.100000] usbcore: registered new interface driver nw80x
[ 2.100000] usbcore: registered new interface driver ov519
[ 2.100000] usbcore: registered new interface driver ov534
[ 2.100000] usbcore: registered new interface driver ov534_9
[ 2.100000] usbcore: registered new interface driver pac207
[ 2.100000] usbcore: registered new interface driver gspca_pac7302
[ 2.100000] usbcore: registered new interface driver pac7311
[ 2.100000] usbcore: registered new interface driver se401
[ 2.100000] usbcore: registered new interface driver sn9c2028
[ 2.100000] usbcore: registered new interface driver gspca_sn9c20x
[ 2.100000] usbcore: registered new interface driver sonixb
[ 2.100000] usbcore: registered new interface driver sonixj
[ 2.100000] usbcore: registered new interface driver spca500
[ 2.100000] usbcore: registered new interface driver spca501
[ 2.100000] usbcore: registered new interface driver spca505
[ 2.100000] usbcore: registered new interface driver spca506
[ 2.100000] usbcore: registered new interface driver spca508
[ 2.100000] usbcore: registered new interface driver spca561
[ 2.100000] usbcore: registered new interface driver spca1528
[ 2.100000] usbcore: registered new interface driver sq905
[ 2.100000] usbcore: registered new interface driver sq905c
[ 2.100000] usbcore: registered new interface driver sq930x
[ 2.100000] usbcore: registered new interface driver sunplus
[ 2.100000] usbcore: registered new interface driver stk014
[ 2.100000] usbcore: registered new interface driver stv0680
[ 2.100000] usbcore: registered new interface driver t613
[ 2.100000] usbcore: registered new interface driver gspca_topro
[ 2.100000] usbcore: registered new interface driver tv8532
[ 2.100000] usbcore: registered new interface driver vc032x
[ 2.100000] usbcore: registered new interface driver vicam
[ 2.100000] usbcore: registered new interface driver xirlink-cit
[ 2.100000] usbcore: registered new interface driver gspca_zc3xx
[ 2.100000] usbcore: registered new interface driver ALi m5602
[ 2.100000] usbcore: registered new interface driver STV06xx
[ 2.100000] usbcore: registered new interface driver gspca_gl860
[ 2.130000] FIMC-IS probe completed
[ 2.130000] [INFO]flite_probe:756: fimc-lite0 probe success
[ 2.130000] [INFO]flite_probe:756: fimc-lite1 probe success
[ 2.130000] s5p-fimc-md: Registered fimc.0.m2m as /dev/video0
[ 2.130000] s5p-fimc-md: Registered fimc.0.capture as /dev/video1
[ 2.130000] s5p-fimc-md: Registered fimc.1.m2m as /dev/video2
[ 2.130000] s5p-fimc-md: Registered fimc.1.capture as /dev/video3
[ 2.130000] s5p-fimc-md: Registered fimc.2.m2m as /dev/video4
[ 2.130000] s5p-fimc-md: Registered fimc.2.capture as /dev/video5
[ 2.130000] s5p-fimc-md: Registered fimc.3.m2m as /dev/video6
[ 2.130000] s5p-fimc-md: Registered fimc.3.capture as /dev/video7
[ 2.135000] s5p-mfc s5p-mfc: decoder registered as /dev/video8
[ 2.135000] s5p-mfc s5p-mfc: encoder registered as /dev/video9
[ 2.135000] HDMI unplugged
[ 2.135000] s5p-hdmiphy 8-0038: probe successful
[ 2.135000] s5p-hdmi exynos4-hdmi: probe successful
[ 2.135000] i2c i2c-7: attached s5p_ddc into i2c adapter successfully
[ 2.135000] i2c-core: driver [s5p_ddc] using legacy suspend method
[ 2.135000] i2c-core: driver [s5p_ddc] using legacy resume method
[ 2.135000] Samsung TV Mixer driver, (c) 2010-2011 Samsung Electronics Co., Ltd.
[ 2.135000] s5p-mixer s5p-mixer: probe start
[ 2.135000] s5p-mixer s5p-mixer: resources acquired
[ 2.135000] s5p-mixer s5p-mixer: added output 'S5P HDMI connector' from module 's5p-hdmi'
[ 2.135000] s5p-mixer s5p-mixer: module s5p-sdo is missing
[ 2.135000] s5p-mixer s5p-mixer: registered layer graph0 as /dev/video10
[ 2.135000] s5p-mixer s5p-mixer: registered layer graph1 as /dev/video11
[ 2.135000] s5p-mixer s5p-mixer: registered layer video0 as /dev/video12
[ 2.135000] s5p-mixer s5p-mixer: probe successful
[ 2.135000] Initialize JPEG driver
[ 2.135000] s5p-jpeg s5p-jpeg.0: JPEG driver is registered to /dev/video13
[ 2.135000] Exynos Graphics 2D driver, (c) 2011 Samsung Electronics
[ 2.135000] [fimg2d_probe] base address: 0x10800000
[ 2.135000] [fimg2d_probe] irq: 121
[ 2.135000] [fimg2d_clk_setup] parent clk: mout_g2d0
[ 2.135000] [fimg2d_clk_setup] sclk: sclk_fimg2d
[ 2.135000] [fimg2d_clk_setup] clkrate: 200000000 parent clkrate: 800000000
[ 2.135000] [fimg2d_clk_setup] gate clk: fimg2d
[ 2.135000] [fimg2d_probe] enable runtime pm
[ 2.135000] [fimg2d_probe] sysmmu disabled for fimg2d
[ 2.135000] usbcore: registered new interface driver uvcvideo
[ 2.135000] USB Video Class driver (1.1.1)
[ 2.135000] samsung-fake-battery samsung-fake-battery: samsung_fake_bat_probe
[ 2.180000] input: mma7660 as /devices/platform/s3c2440-i2c.3/i2c-3/3-004c/input/input2
[ 2.180000] mma7660 3-004c: MMA7660 device is probed successfully.
[ 2.180000] i2c-core: driver [mma7660] using legacy suspend method
[ 2.180000] i2c-core: driver [mma7660] using legacy resume method
[ 2.180000] MMA7660 sensor driver registered.
[ 2.180000] Exynos: Kernel Thermal management registered
[ 2.180000] s3c2410_wdt: S3C2410 Watchdog Timer, (c) 2004 Simtec Electronics
[ 2.180000] s3c2410-wdt s3c2410-wdt: watchdog inactive, reset disabled, irq disabled
[ 2.180000] device-mapper: uevent: version 1.0.3
[ 2.180000] device-mapper: ioctl: 4.22.0-ioctl (2011-10-19) initialised:
dm-devel@redhat.com[ 2.180000] Bluetooth: Virtual HCI driver ver 1.3
[ 2.180000] Bluetooth: HCI UART driver ver 2.2
[ 2.180000] Bluetooth: HCI H4 protocol initialized
[ 2.180000] Bluetooth: HCI BCSP protocol initialized
[ 2.180000] Bluetooth: HCILL protocol initialized
[ 2.180000] usbcore: registered new interface driver bcm203x
[ 2.180000] usbcore: registered new interface driver bpa10x
[ 2.180000] usbcore: registered new interface driver bfusb
[ 2.180000] usbcore: registered new interface driver btusb
[ 2.180000] cpuidle: using governor ladder
[ 3.140000] usb 1-1: New USB device strings: Mfr=0, Product=1, SerialNumber=0
[ 3.140000] cpuidle: using governor menu
[ 3.140000] sdhci: Secure Digital Host Controller Interface driver
[ 3.140000] sdhci: Copyright(c) Pierre Ossman
[ 3.140000] Front
[ 3.140000] Synopsys Designware Multimedia Card Interface Driver[ 3.165000] usb 1-1: Product: USB 2.0 Hub
[ 3.165000] dw_mmc dw_mmc: Using internal DMA controller.
[ 3.180000] hub 1-1:1.0: USB hub found
[ 3.185000] hub 1-1:1.0: 4 ports detected
[ 3.195000] mmc_host mmc0: Bus speed (slot 0) = 50000000Hz (slot req 400000Hz, actual 396825HZ div = 63)
[ 3.195000] dw_mmc dw_mmc: Version ID is 240a
[ 3.195000] dw_mmc dw_mmc: DW MMC controller at irq 109, 32 bit host data width, 128 deep fifo
[ 3.195000] s3c-sdhci exynos4-sdhci.2: clock source 2: mmc_busclk.2 (100000000 Hz)
[ 3.225000] mmc1: SDHCI controller on samsung-hsmmc [exynos4-sdhci.2] using ADMA
[ 3.225000] s3c-sdhci exynos4-sdhci.3: clock source 2: mmc_busclk.2 (100000000 Hz)
[ 3.260000] mmc_host mmc0: Bus speed (slot 0) = 50000000Hz (slot req 52000000Hz, actual 50000000HZ div = 0)
[ 3.260000] mmc_host mmc0: Bus speed (slot 0) = 100000000Hz (slot req 52000000Hz, actual 50000000HZ div = 1)
[ 3.260000] mmc0: new high speed DDR MMC card at address 0001
[ 3.265000] mmc2: SDHCI controller on samsung-hsmmc [exynos4-sdhci.3] using ADMA
[ 3.265000] usbcore: registered new interface driver usbhid
[ 3.265000] usbhid: USB HID core driver
[ 3.265000] Samsung Audio Subsystem Driver, (c) 2011 Samsung Electronics
[ 3.265000] audss_init: RCLK SRC[busclk]
[ 3.265000] Samsung SRP driver, (c)2011 Samsung Electronics
[ 3.300000] mmcblk1: mmc0:0001 M8G1WA 7.28 GiB
[ 3.300000] mmcblk1boot0: mmc0:0001 M8G1WA partition 1 2.00 MiB
[ 3.310000] mmcblk1boot1: mmc0:0001 M8G1WA partition 2 2.00 MiB
[ 3.310000] GACT probability NOT on
[ 3.310000] Mirror/redirect action on
[ 3.310000] u32 classifier
[ 3.310000] Actions configured
[ 3.310000] Netfilter messages via NETLINK v0.30.
[ 3.310000] nf_conntrack version 0.5.0 (15535 buckets, 62140 max)
[ 3.310000] ctnetlink v0.93: registering with nfnetlink.
[ 3.310000] NF_TPROXY: Transparent proxy support initialized, version 4.1.0
[ 3.310000] NF_TPROXY: Copyright (c) 2006-2007 BalaBit IT Ltd.
[ 3.310000] xt_time: kernel timezone is -0000
[ 3.315000] ip_tables: (C) 2000-2006 Netfilter Core Team
[ 3.315000] arp_tables: (C) 2002 David S. Miller
[ 3.315000] TCP: cubic registered
[ 3.315000] Initializing XFRM netlink socket
[ 3.315000] NET: Registered protocol family 10
[ 3.315000] mip6: Mobile IPv6
[ 3.315000] ip6_tables: (C) 2000-2006 Netfilter Core Team
[ 3.315000] sit: IPv6 over IPv4 tunneling driver
[ 3.315000] NET: Registered protocol family 17
[ 3.315000] NET: Registered protocol family 15
[ 3.405000] Bluetooth: RFCOMM TTY layer initialized
[ 3.405000] mmcblk1: p1
[ 3.405000] mmcblk1boot1: unknown partition table
[ 3.405000] mmcblk1boot0: unknown partition table
[ 3.420000] Bluetooth: RFCOMM socket layer initialized
[ 3.425000] Bluetooth: RFCOMM ver 1.11
[ 3.430000] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 3.435000] Bluetooth: BNEP filters: protocol multicast
[ 3.440000] Bluetooth: HIDP (Human Interface Emulation) ver 1.2
[ 3.445000] NET: Registered protocol family 35
[ 3.450000] Key type dns_resolver registered
[ 3.455000] EXYNOS4X12: Adaptive Support Voltage init
[ 3.460000] EXYNOS4X12(SG): ORIG : 3 MOD : 0 RESULT : 3
[ 3.465000] EXYNOS: Fail to get HPM Value
[ 3.470000] VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 4
[ 3.475000] usb 1-1.4: new full-speed USB device number 3 using s5p-ehci
[ 3.480000] mmc1: new SD card at address e624
[ 3.480000] mmcblk0: mmc1:e624 SU02G 1.84 GiB
[ 3.485000] mmcblk0: p1 p2
[ 3.495000] ThumbEE CPU extension supported.
[ 3.500000] Registering SWP/SWPB emulation handler
[ 3.505000] [ 6 ] Memory Type Undertermined.
[ 3.510000] DVFS : VDD_INT Voltage table set with 0 Group
[ 3.540000] Failed to init busfreq.
[ 3.540000] s3c-rtc s3c64xx-rtc: setting system clock to 2014-06-10 09:10:44 UTC (1402391444)
[ 3.540000] hotplug_policy_init: intialised with policy : DVFS_NR_BASED_HOTPLUG
[ 3.540000] ALSA device list:
[ 3.540000] No soundcards found.
[ 3.540000] Freeing init memory: 212K
Waiting for SD Card...
[ 3.570000] usb 1-1.4: not running at top speed; connect to a high speed hub
[ 3.640000] usb 1-1.4: New USB device found, idVendor=0a46, idProduct=9621
[ 3.640000] usb 1-1.4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 3.645000] dm962x: dm_read_reg() 0x29 0x0a
[ 3.645000] dm962x: dm_read_reg() 0x28 0x46
[ 3.645000] dm962x: dm_read_reg() 0x2b 0x96
[ 3.645000] dm962x: dm_read_reg() 0x2a 0x21
[ 3.650000] dm962x: dm_read_reg() 0xF2 0x00
[ 3.655000] dm962x: [Analysis.2] 0xF2, D[7] 0 OK
[ 3.660000] dm962x: [Analysis.2] 0xF2, D[6] 0 OK
[ 3.665000] dm962x: [Analysis.2] 0xF2, D[5] 0 EP1: Empty
[ 3.670000] dm962x: [Analysis.2] 0xF2, D[3] 0 OK
[ 3.675000] dm962x: [Analysis.2] 0xF2, D[2] 0 OK
[ 3.680000] dm962x: [Analysis.2] 0xF2, D[1] 0 OK
[ 3.685000] dm962x: [Analysis.2] 0xF2, D[0] 0 Status: TX buffer 0 pkts
[ 3.695000] dm962x: ethernet MAC address 00:00:ff:ff:00:00 (chip)
[ 3.695000] dm962x: 9620 Mode = 128
[ 3.710000] dm9620 1-1.4:1.0: eth0: register 'dm9620' at usb-s5p-ehci-1.4, Davicom DM9620 USB Ethernet, 00:00:ff:ff:00:00
[ 4.355000] CPU3: shutdown
Waiting for SD Card...
[ 5.060000] CPU2: shutdown
[ 5.465000] CPU1: shutdown
Waiting for SD Card...
Waiting for SD Card...
Waiting for SD Card...
1Wire touchscreen OK
switch_root: bad newroot /r
[ 8.625000] Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000100
[ 8.625000]
[ 8.625000] [<c001aa54>] (unwind_backtrace+0x0/0xf0) from [<c0613798>] (panic+0x88/0x1dc)
[ 8.625000] [<c0613798>] (panic+0x88/0x1dc) from [<c0036098>] (do_exit+0x684/0x7e4)
[ 8.625000] [<c0036098>] (do_exit+0x684/0x7e4) from [<c0036454>] (do_group_exit+0x3c/0xb0)
[ 8.635000] [<c0036454>] (do_group_exit+0x3c/0xb0) from [<c00364d8>] (sys_exit_group+0x10/0x18)
[ 8.640000] [<c00364d8>] (sys_exit_group+0x10/0x18) from [<c0013a00>] (ret_fast_syscall+0x0/0x30)
[ 8.650000] Rebooting in 5 seconds..
第二种：
后来放弃使用fastboot来烧写内核、文件系统。改用如下方法：
首先将SD卡分区，使用linux下的fdisk工具，SD卡的分区结构如下，以2G SD卡为例（8G的也试过）：
前10M空白空间留给uboot、zImage、ramdisk-u.img，接下来的800M空间作为分区2给rootfs_qtopia_qt4.img，剩余的空间作为分区1。分别将分区1格式化为FAT32，mkfs.vfat /dev/sdc1；将分区2格式化为ext4，mkfs.ext4 /dev/sdc2。之所以将分区1和分区2所使用的空间所在位置反过来弄，fastboot中的fdisk -c 0命令的分区就是这么弄的，我也说不清楚为什么。分别将uboot、zImage、ramdisk-u.img，rootfs_qtopia_qt4.img拷贝（cp）到分区1中，以便在uboot中使用fatload命令将这些镜像文件读到内存。
其次，将文件系统rootfs_qtopia_qt4.img，挂载到SD卡的分区2。首先使用sudo mount /dev/sdc2 /mnt命令将分区2挂载到/mnt上，然后解压rootfs_qtopia_qt4-20131130.tar.gz，得到文件rootfs_qtopia_qt4，然后cd rootfs_qtopia_qt4,使用sudo cp -ra ./* /mnt将文件系统拷贝到分区2中。然后卸载分区2和分区1，把出SD卡，插到板子上。从SD启动。
uboot模式下烧写uboot、zImage、ramdisk-u.img到SD卡。进入到uboot命令行，使用如下命令，
fatload mmc 0:1 50008000 uboot.bin //从sd卡的fat分区1中读取文件uboot.bin到内存起始地址为0x50008000的空间中
movi write u 0 50008000 //将内存中的uboot文件烧写到SD卡中
fatload mmc 0:1 50008000 zImage ///从sd卡的fat分区1中读取文件zImage到内存起始地址为0x50008000的空间中
movi write k 0 50008000 //将内存中的zImage烧写到SD卡中
fatload mmc 0:1 50008000 ramdisk-u.img ///从sd卡的fat分区1中读取文件ramdisk-u.img到内存起始地址为0x50008000的空间中
movi write r 0 50008000 100000 //将内存中的ramdisk-u.img烧写到SD卡中
设置bootargs：
使用setenv命令设置bootargs使得
bootargs=root=/dev/mmcblk0p2 rootfstype=ext4 console=ttySAC0,115200 init=/linuxrc uhost0=y ctp=2 skipcali=y
启动内核
使用boot命令启动内核。
仍然显示以上错误，不知为什么啊
。
